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ffmpeg.org; dkim=pass header.d=niedermayer.cc; arc=none; dmarc=none Authentication-Results: ffmpeg.org; dkim=pass header.d=niedermayer.cc; arc=none (Message is not ARC signed); dmarc=none Received: from relay5-d.mail.gandi.net (relay5-d.mail.gandi.net [217.70.183.197]) by ffbox0-bg.ffmpeg.org (Postfix) with ESMTPS id 8000D68E6D7 for ; Sat, 3 Jan 2026 01:27:19 +0200 (EET) Received: by mail.gandi.net (Postfix) with ESMTPSA id 7E1C44327D for ; Fri, 2 Jan 2026 23:27:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=niedermayer.cc; s=gm1; t=1767396438; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=oa+rbanPRsof1JybV630HChvIk57uK8RMUVPFFYjzo4=; b=HaplspyK/dGuZajJtaNZHWKN0fqgiESki5QdzAAoTApwG9hp5p4BoYmEtuz78wqO5H/vYw UJB5PQBxLl024By2vRscvLV6mN2qmN9ye9yDGT1TCrRIAyBkRfsipPaP79B2kLfKAwXL4P AiH3nFDoYeS3N+alVkGvwaQ8E/KWh3QBAnDs3ofB8Hjp6xgg354ou1OFAgk8cRNlJYRgjs HfNodW0FPIqnt/aGuJf4XPWlRTt/0k2zZueqpo98VJ6r5C4IPu5CvmL09e6ALO7VpB46wP 1tuDaj0SuNEB5LalzqNsc36eTqhslrvFc1wcmvLnY7rikmjQ4vq+hWmJkbiHdA== Date: Sat, 3 Jan 2026 00:27:17 +0100 To: FFmpeg development discussions and patches Message-ID: References: <20251220212839.2451047-1-Jason@zx2c4.com> MIME-Version: 1.0 In-Reply-To: X-GND-Sasl: michael@niedermayer.cc X-GND-State: clean X-GND-Score: -85 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeefgedrtddtgdekleelkecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfitefpfffkpdcuggftfghnshhusghstghrihgsvgenuceurghilhhouhhtmecufedtudenucesvcftvggtihhpihgvnhhtshculddquddttddmnegfrhhlucfvnfffucdludehmdenucfjughrpeffhffvuffkfhggtggujgesghdtreertddtjeenucfhrhhomhepofhitghhrggvlhcupfhivgguvghrmhgrhigvrhcuoehmihgthhgrvghlsehnihgvuggvrhhmrgihvghrrdgttgeqnecuggftrfgrthhtvghrnhepleekgefgffeiudefjeeuffejudehtddtudeltdehveevvedtieeulefhtdeutdeknecukfhppeeguddrieeirdeiiedrhedtnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehinhgvthepgedurdeiiedrieeirdehtddphhgvlhhopehlohgtrghlhhhoshhtpdhmrghilhhfrhhomhepmhhitghhrggvlhesnhhivgguvghrmhgrhigvrhdrtggtpdhqihgupeejgfduveeggeefvdejffdpmhhouggvpehsmhhtphhouhhtpdhnsggprhgtphhtthhopedupdhrtghpthhtohepfhhfmhhpvghgqdguvghvvghlsehffhhmphgvghdrohhrgh Message-ID-Hash: 32RXGN2O3OZ66T6FOHMHTRRJIIL7FNZV X-Message-ID-Hash: 32RXGN2O3OZ66T6FOHMHTRRJIIL7FNZV X-MailFrom: SRS0=JxC2=7H=niedermayer.cc=michael@ffmpeg.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; header-match-ffmpeg-devel.ffmpeg.org-0; header-match-ffmpeg-devel.ffmpeg.org-1; header-match-ffmpeg-devel.ffmpeg.org-2; header-match-ffmpeg-devel.ffmpeg.org-3; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.10 Precedence: list Reply-To: FFmpeg development discussions and patches Subject: [FFmpeg-devel] Re: [PATCH] avformat/wavenc: use RF64 when needed List-Id: FFmpeg development discussions and patches Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: Michael Niedermayer via ffmpeg-devel Cc: Michael Niedermayer Content-Type: multipart/mixed; boundary="===============8121205771878308923==" Archived-At: List-Archive: List-Post: --===============8121205771878308923== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="ubVp1fsg5/O+BpnZ" Content-Disposition: inline --ubVp1fsg5/O+BpnZ Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi Daniel On Tue, Dec 30, 2025 at 11:43:17PM -0800, Daniel Verkamp via ffmpeg-devel w= rote: > On Tue, Dec 30, 2025 at 3:17=E2=80=AFAM Jason A. Donenfeld wrote: [...] > That said, I think it's fair to say that switching to `-rf64 auto` by > default won't cause further compatibility problems due to breaking the > 44-byte header assumption, because current ffmpeg already doesn't > generate such files (although it did at some point in the distant > past). WAV files generated by the ffmpeg CLI now have a "ISFT" chunk > containing the libavformat version, so the header won't be the magic > 44-byte size regardless of whether the extra reserved-for-ds64 padding > is added. In other words, any supposed compatibility improvements we'd > get by trying to stick with the expected "classic" layout were already > lost when the encoder metadata was added; I should have peeked in a > hex editor rather than relying on my recollection. :) Someone should add a classic44_wav mode. So we cab generate files for these ancient devices that expect that thx [...] --=20 Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Arguing that you don=E2=80=99t care about the right to privacy because you = have nothing to hide is no different than saying you don=E2=80=99t care about fr= ee speech because you have nothing to say - Edward Snowden --ubVp1fsg5/O+BpnZ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABEKAB0WIQSf8hKLFH72cwut8TNhHseHBAsPqwUCaVhUUQAKCRBhHseHBAsP qxcLAJ44ooqOEKJCJwb5zqiExMbdu40WvQCfcyiY62/KrAfuz8ssPfdK1LuPPjA= =PFtB -----END PGP SIGNATURE----- --ubVp1fsg5/O+BpnZ-- --===============8121205771878308923== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ ffmpeg-devel mailing list -- ffmpeg-devel@ffmpeg.org To unsubscribe send an email to ffmpeg-devel-leave@ffmpeg.org --===============8121205771878308923==--